1301111203212 has 36 divisors (see below), whose sum is σ = 3320851257360. Its totient is φ = 429493017312.

The previous prime is 1301111203157. The next prime is 1301111203213. The reversal of 1301111203212 is 2123021111031.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1301111203213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175442787 + ... + 175450202.

It is an arithmetic number, because the mean of its divisors is an integer number (92245868260).

Almost surely, 2^{1301111203212} is an apocalyptic number.

1301111203212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1301111203212 is an abundant number, since it is smaller than the sum of its proper divisors (2019740054148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301111203212 is a wasteful number, since it uses less digits than its factorization.

1301111203212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350893102 (or 350893097 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1301111203212 its reverse (2123021111031), we get a palindrome (3424132314243).

The spelling of 1301111203212 in words is "one trillion, three hundred one billion, one hundred eleven million, two hundred three thousand, two hundred twelve".